Dense anodes of lithium alloys for all solid batteries

Details Dense anodes of lithium alloys for all solid batteries Dense anodes of lithium alloys for all solid batteries

1985-03-21

1987-03-24

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429199, 429218, H01M 618, H01M 1040

Patent

active

046525068

ABSTRACT:
The disclosure describes an anode made of a thin metallic foil in discharged condition which is converted into a dense metallic alloy of an alkali metal during the first charge. The disclosure also describes an electrochemical rechargeable battery in discharged condition. The latter comprises an anode made of a thin metallic foil, such as aluminum, magnesium or tin, an electrolyte, for example a polymeric electrolyte, as well as a cathode based on an oxide, a sulfide or an halide, prepared in discharged condition and constituting a source of alkali metal preferably lithium. The cathode should be capable of freeing the alkali metal under a charge so that the latter is introduced into the metallic foil to form an alloy of the alkali metal and of at least a portion of the metal constituting the metallic sheet. To obtain the charged battery, it is merely sufficient to apply a charge during a certain period of time while the anode is being transformed into an alloy. Substantially improved properties during cycling.

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